Actually there had been only 97 Riesel primes submitted to the Top5000 list in 2018.

I'll have to correct myself for the above statement.

To state it more precisely:
As of 01.01.2019 00:05 GMT there had been 97 Riesel primes still listed in the Top5000 list and the associated Top20 lists as found in 2018. The total number of Riesel primes submitted to the list in 2018 was actually higher (116).

As of 01.01.2019 00:05 GMT the following Riesel primes had already dropped from the list(s):